Convertible cot or cradle.



B. LARSON.

GONVERTBLE COT 0R CRADLE.

APPLICATION FILED MAR..19, 1910. 1,017,759, Patented Feb.20,1912.

4 SHEETS-SHEET l.

B. LARSON. CONVERTIBLE GOT OR CRADLE. APPLIGA'TIGN FILED MAB. 19, 1910.

Patented Feb. Z, 1912* 4 SHEE'IB-SHLEBT 2.

B. LARSON. n CONVERTIBLE COT 0R CRADLE.

APPLICATION FILED MAR.19, 1910.

, 1,017,769. Patend Feb.2o,1912.

4 SHEETS-SHEET s.

B. LARSON. GOVERTIBLE COT 0R CRADLE. APPLIQATION FILED MAR.19, 1910.

Patented `1eb'.20,1912.

4 sums-SHEET 4.

BENG-T LARSON, OF

PATENT OFFICE.

CHICAGO, ILLINOIS.

CONVERTIBLE COT OR CRADLE.

Specification of Letters Patent.

Patent-ea Feb. 2o, 1912.

Application filed March 19, 1910. Serial No. 550,411.

To all whom, 'it may concern:

Be it known that I, BENG'r LARsoN, a citizen of the United States,residingat Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Convertible Cots orverted, be rolled from place to Cradles, of which the following is aspecilication.

My invention relates to a cot, cradle, bed or the like, and theinvention has for its object to provide an article of this sort withrigid supporting means and also with wheels .or other rolling supportingmeans, either of which means of support for the cot, cradle, bed or thelike may be used as desired, so that the article is convertible at willfrom a cot, cradle, bed or the like, which has a firm stationary bearingon the Hoor to a Wheeled article in the nature of a. go-cart or babycarriage which can bepsed as such outof doors, or when the article isused entirely in the house, may, when thus conplace.

The invention has for further objects the new and useful combinationsand arrangements of mechanical means hereinafter described and claimedwhereby there is provided a suitable and convenient forni 'ofconvertible cot, cradle, bed or `the like of the general character abovedescribed.

The invention is illustrated in a preferred embodiment in theaccompanying drawings, whereir- Figure 1 is a side elevation showing thedevice rigidlyl supported with the wheels lifted from the ground, thebed or cradle portion being shown as swung from its normal position forthe purpose of better illustration of the different parts of the device.Fig. 2 is a similar view showing the device supported on the wheels withthe legs folded up. Fig. 3 is a plan View. Fig. 4 an end elevationwit-hthe parts shown in the position' illustrated in Fig. 1 and Fig. afragmentary sectional view taken on line '5 5 of Fig. 3, looking in thedirection of ports may in alternationbe brought into or out .ofoperative position, as desired. The bed section is shown as consistingof a supporting framework and of a swinging portion, thedevice beingtherefore in the form of a cradle. It is obvious, however, that theswinging or rocking feature of the device might be omitted, in whichcase the bed sec- 4tion would be in the form of an ordinary bed o1` cot.

Referring to the drawings the framework, as shown, consists of the fouruprights 10 joined together by the pairs of side bars 11 and 12 and bythe end bars 13. The swinging portion consists of a bed or cradle 14which is supported from the uprights l0 by the swinging frames 15 whichare pivoted to the upper ends of the uprights 10 and to the lowercorne-rs of the bed. The stationary supporting means is shown asconsisting of the legs 16 which are pivoted in the ends of the uprights10. The rolling support is made up of the wheels 17 mounted v-on axles18 which are journaled in a truck consisting of the side pieces19,'hangers 20 and bracing struts 2l. A lever 22 is pivoted to the sidepiece 19 of the truck on one side of the device. It is also pivoted at23 to the side bar' 12 on the same side of the device; these pivotalconnections being in oblique 'I'arrangement when the side pieces 19 arein 1Contact' with the side bars l2. The side lpiece 19 is .alsoconnected with the side bar .12 and preferablyon each side of the de-.vice by a paii of pivoted diagonally vplaced links 24. The pivot 23between -the lever -2'2 and the side bar 12 consists of a pin which isrigidly connected to the lever and which extends through the side bar 12Yand carries rigidly thereon the gear wheel 25 which meshes with a gearwheel 26 on the side bar 12.` Gear wieels 25 and 26 are provided withthe levers 27, Q3 respectively, and the ends of these levers areconnected to the adjacent legs 16 by means of the pivoted links 29 and30. Gear wheel 25 is operatively connected wit-h a. gear wheel 31 on theopposite side of the device by means of a bar 32, the angular..,ends ofwhich 33 'and 34 are secured respectively to the lever Q7 and acorresponding lever 35 on gear wheel 31. The latter meshes with a gearwheel 36 having a lever 37 and the levers 35 and 37 are connected bymeans of links 38, 39 respectively, with the folding legs 16 on thatside of the device. The pivot 40 of gear wheel 31 carries on its outerend a lever 41 which is pivoted to the side piece 19.

The device may be provided with any suitable form of handle or handles.I have shown two handles 42, one at each end.

The convertible cot or cradle above described ma-y be made of anysuitable material, such for example as wood, or metal tubing, and ingeneral the form and construction of the various parts may be inaccordance with any desired design.

My invention is not limited to the particular constructions,arrangements and design of parts shown. The article is in the form of acradle with the bed portion mounted so that it can rock or swing, butthis is not an essential feature of the invention.

The operation of the device, shown and described, is as follows: V'Viththe parts in the position shown inFig. 1 the bed or cradle section isfirmly supported on the legs 16, the wheels 17 being lifted from thefloor. The legs Vcan not accidentally fold up becauseof the angularposition of the links 29, 30, 38 and 39 in relation to the respectivelevers on the gear wheels with which they are connected, these partsbeing maintained in this relationship by the weight of the bed or cradlesection. In order to fold up the legs 16 and bring the wheels 17 incontact with the floor, the lever 22 is swung to the right, referencebeing made to Fig. l, which movement results, iirst,in moving the truckon which the wheels are mounted downwardly so as to bring the Wheels incontact with the ground; second, in raising the bed section so as toiift the legs 1G out of contact with theV ground, and nally, when thelegs have been raised suiiciently to clearthe ground, in folding thelegs up under the side bars 12 into the position shown in Fig. 2, withthe bed section again in contact with the truck which now supports it.By this movement of the lever the bed section is shifted lengthwise ofthe truck. The movement of the parts is so calculated that the foldingof the legs does not begin until wheels 1 7 are in contact with theground and until the bed section has been raised highenough above thetruck to permit the lower ends of the legs to clear the ground. Nostrain, therefore, isV put upon the legs when they are folded. Torestore the parts to the position'shown in Fig. 1 it is necessary simplyto move the lever back to its original position. The unfolding of thelegs in this movement takes place before they come into contact with`they ground, this resulting from the fact that the bed section does notcome into contact with the truck until after the pivota-l'points betweenthe links 29, 30, 38 and 39 have passed out of. alinement with thepivotal 1 points of these links with the legs and the pivots of therespective gear wheels.

Tith the parts in the position shown in Fig. 1,' the device is firmlyand rigidly supported on legs which are in effect locked in theirext-ended supporting position. With the parts in the posit-ion shown inFig. 2 the device is converted into a -wheeled or rolling cradle, cot,bed or the like which may be used as a. go-cart or baby carriage inwhich case it may be propelled by means of one of the handles 42.

I claim: v

1. In an article of the character described, the combination with a bedsection, of rolling support-ing means connected with the bed section sothat the bed section maybe raised therefrom, means for .raising said bedsection relative to said rolling supporting means, and folding supportswhich are adapted to be folded or unfolded while said bed section is soraised.

2. In an article of the character described, the combination with a bedsection, of rolling supporting means connected with the bed section sothat the bed section may be raised therefrom, means for raising saidbedsection relative to said rolling supporting means, folding supports andmeans operated by said raising means for folding and unfolding saidsupports while the bed section is so raised.

3. In an article of the character described, the combination with a bedsection,.of legs hinged to said bed section, rolling supporting meansfor said bed section, links connecting the bed section withthe rollingsupporting means, means for raising said bed section from said rollingsupporting means, and operatively connected therewith means for foldingand unfolding said legs.

4. In an article of the character described, the combination with a bedsection, of legs hinged to said bed section, rolling supporting meansfor said bedsection, linksconnecting the bed section with the rollingsupporting means, means for raising said hed section from said rollingsupporting means, and operatively connected therewithmeans for foldingand unfolding said legs and for locking the same in their extendedposition.

5. In an article of the character described, the combination with a hedsection. cf legs hinged thereto, rolling supporting means for said bedsection, links connectin'g, the bed section with the rolling supportingVmeans, means for shifting said bed section lengthwise of the rollingsupporting means, and connected therewith means for folding andunfolding said legs.

6. In an article of the character described, the combination with a bedsection, of legs hinged thereto, a truck provided with wheels, linksconnecting said bed section with said truck, a lever connected with saidIbed section and with said truck for shifting y bed section and withsaid truck forshifting the former lengthwise of the latter, gears ywhichare meshed together and rotated by the lever, and links connecting saidgears with said hinged legs, substantially as described'. y

8. In an article of the' character described, the combination wfith abed section, of legs hinged thereto, a truck provided with wheels, linksconnecting said bed section with said truck, a lever connected with saidbed'section and with said truck for shifting the former lengthwise ofthe latter, gears which are meshed together and rotated by the lever,links connecting said gears-with said hinged legs, and a handle on saidbed section, substantially as described.

9. In an article of the character described, the combination with a bedsection, of rolling supporting means for the same, folding supports forthe same, links connecting the bed section and rolling supporting means,means for moving the bed section relative to said rolling supports andconnected therewith means forfolding and unfoldin the folding supports..

10. nan article Vof the character described, the combination with a bedsection, of wheels which support the same, two pairs of :folding legs onsaid bed section which fold toward each other, a lever on said bedsection, links connected with said folding legs, and means connectingsaidlinks and lever whereby the movementvof the lever folds and unfoldsthe legs.

11'.A In an article of the character described, the combination with abed section,

of wheels which support the same, folding legs on said bed section, alever on said bed section, links connected with said folding legs, meansconnecting said links and lever whereby the movement of thel lever foldsand unfolds the legs, and means for raising the bed section relative tothe wheels..

12. In an article of the character described, the combination with a bedsection,

of legs pivoted to the same so as to fold,

rolling supporting means for said bed section, links connecting said bedsection land rolling supporting means, and means Vfor* raising said bedsection relative to said rolling supporting means.

' Witnesses:

I. H. TRUMAN,

E. L. BREIDERT.

BENGT LABS-0N..

